This project assessed the suitability of Wisconsin’s asphalt binder modification guidelines. It follows up on a previous Wisconsin Highway Research Program (WHRP) study (0092-03-13) which served as an initial step towards validating WisDOT’s asphalt binder selection criteria. The researchers identified field sites and sampled hot mix asphalt (HMA) materials. They characterized the as-built asphalt binder material properties using newly-developed test methods that focused on damage-resistance characteristics. Early-life pavement distress surveys were conducted to evaluate the ability of these test methods to quantify the effect of modified binder use on field performance.
The purpose of this project was to continue phase I of the study with the objective of identifying promising procedures and applicable modified binder...
The percent of reclaimed asphalt pavement (RAP) used in hot mix asphalt (HMA) is currently established either by arbitrarily setting maximum percent l...
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